Primary Outcomes (explanation)
Following the Global Preference Survey (GPS) analysis, we will focus on the following measures.
Risk preferences
To measure risk aversion, we will ask 31 questions for quantitative and 1 question for qualitative measures (i.e., self-reporting risk-taking behaviour) (Falk et al., 2018). The quantitative measure consists of 31 questions with two options, a 50% chance of receiving the full amount or a sure payment. For each question, the sure payment varies. The qualitative measure consists of self-assessed risk-taking behaviour on a scale of 0-10, with 10 referring to the strongest willingness.
Time preferences
To measure impatience, we will ask 31 questions for quantitative and 1 question for qualitative measures (i.e., willingness to wait) (Falk et al., 2018). The quantitative measure consists of 31 questions with two options, a payment today or a larger payment in 12 months. For each item, the future payment varies. The qualitative measure consists of the self-assessed patience level on a scale of 0-10, with 10 referring to the highest patience.
Positive reciprocity
To measure positive reciprocity, we will ask two questions as follows: (i) preference (in monetary form) for offering a gift in exchange for help and (ii) self-assessment about willingness to return a favour. Both questions will be assessed on a scale of 0-10, with 10 referring to the strongest willingness.
Negative reciprocity
To measure negative reciprocity, we will use three questions to elicit their willingness (measured on a scale of 0-10, with 10 referring to the strongest willingness) to (i) take revenge, (ii) punish themselves for unfair behaviour, and (iii) punish someone for unfair behaviour.
Trust
We will ask one question to measure trust level by asking to what degree they believe people have only the best intentions on a scale of 0-10, with 10 referring to the highest belief.
Altruism
We will use two questions on the donation: (i) how much of an unexpected monetary gain they want to donate and (ii) self-assessment of willingness to donate on a scale of 0-10, with 10 referring to the strongest willingness.
We will construct indices using these measures following Falk et al. (2018). In particular, we will have three indices: risk, time and social (including reciprocities, trust and altruism). They use weight for each question of an index. The sum of the weights needs to be one for each index. Therefore, if there are multiple items under one weight (i.e., multiple draws to measure risk aversion), the weight is equally distributed among the items.
The steps to construct an index are as follows; i. compute the z-scores of each survey item at the individual level, (ii) weigh these z-scores using the weights (reported in column 6 of Table A1 in the pre-analysis plan), and (iii) sum the weighted z-scores for each index. For example, risk-aversion index= (0.01525 X z-score of draw 1)+ (0.01525 X z-score of draw 2)+……+ (0.01525 X z-score of draw 31)+ (0.527 X z-score of self-assessed item).
Our list of outcomes also includes intra-household decision-making preferences. To elicit these preferences, we will adapt and expand the standard module of DHS on women’s participation in household decision-making (NIPORT and ICF, 2020). For example, while the DHS bundles all household major decisions together within one question, we will separate these decisions into more specific domains. In particular, we will ask women whether they are willing to make decisions regarding (i) household daily expenses; (ii) food consumption; (iii) how their individual earnings will be spent, (iv) household saving decisions (where to save/how to spend savings) (v) children’s education; (vi) marriage of children; (vii) medical treatment of household member; (viii) Visits to family or relatives; and (ix) own health care. Their response will be coded on a scale of 0-10, with 10 referring to a stronger willingness.